<template>
  <v-data-table
    :headers="headers"
    :items="desserts"
    sort-by="calories"
    class="elevation-1"
  >
    <template v-slot:top>
      <v-toolbar flat>
        <v-toolbar-title>My CRUD</v-toolbar-title>
        <v-divider class="mx-4" inset vertical></v-divider>
        <v-spacer></v-spacer>
        <v-btn color="primary" dark class="mb-2" @click="runItem()">
          Run Item
        </v-btn>
        <v-dialog v-model="dialog" max-width="500px">
          <template v-slot:activator="{ on, attrs }">
            <v-btn class="mb-2" v-bind="attrs" v-on="on"> New Item </v-btn>
          </template>
          <v-card>
            <v-card-title>
              <span class="text-h5">{{ formTitle }}</span>
            </v-card-title>

            <v-card-text>
              <v-container>
                <v-row>
                  <v-col cols="12" sm="6" md="4">
                    <v-text-field
                      v-model="editedItem.id"
                      label="ID"
                    ></v-text-field>
                  </v-col>
                  <v-col cols="12" sm="6" md="4">
                    <v-text-field
                      v-model="editedItem.nodeid"
                      label="NodeID"
                    ></v-text-field>
                  </v-col>
                  <v-col cols="12" sm="6" md="4">
                    <v-text-field
                      v-model="editedItem.description"
                      label="Description"
                    ></v-text-field>
                  </v-col>
                </v-row>
              </v-container>
            </v-card-text>

            <v-card-actions>
              <v-spacer></v-spacer>
              <v-btn color="blue darken-1" text @click="close"> Cancel </v-btn>
              <v-btn color="blue darken-1" text @click="save"> Save </v-btn>
            </v-card-actions>
          </v-card>
        </v-dialog>
        <v-dialog v-model="dialogDelete" max-width="500px">
          <v-card>
            <v-card-title class="text-h5"
              >Are you sure you want to delete this item?</v-card-title
            >
            <v-card-actions>
              <v-spacer></v-spacer>
              <v-btn color="blue darken-1" text @click="closeDelete"
                >Cancel</v-btn
              >
              <!-- 利用 editedItem 取出想要删除的数据项，取出其 nodeid -->
              <v-btn color="blue darken-1" text @click="deleteItemConfirm"
                >OK</v-btn
              >
              <v-spacer></v-spacer>
            </v-card-actions>
          </v-card>
        </v-dialog>
      </v-toolbar>
    </template>
    <template v-slot:item.actions="{ item }">
      <v-icon small class="mr-2" @click="editItem(item)"> mdi-pencil </v-icon>
      <v-icon small @click="deleteItem(item)"> mdi-delete </v-icon>
    </template>
    <template v-slot:no-data>
      <v-btn color="primary" @click="initialize"> Reset </v-btn>
    </template>
  </v-data-table>
</template>

<script>
export default {
  data: () => ({
    dialog: false,
    dialogDelete: false,
    // headers 用于指定表格显示哪些字段
    headers: [
      {
        text: "ID",
        align: "start",
        sortable: false,
        value: "id",
      },
      { text: "NodeID", value: "nodeid" },
      { text: "Description", value: "description" },
      { text: "Actions", value: "actions", sortable: false },
    ],
    desserts: [],
    editedIndex: -1,
    editedItem: {
      id: "",
      nodeid: "",
      description: "",
    },
    defaultItem: {
      id: "",
      nodeid: "",
      description: "",
    },
  }),

  computed: {
    formTitle() {
      return this.editedIndex === -1 ? "New Item" : "Edit Item";
    },
  },

  watch: {
    dialog(val) {
      val || this.close();
    },
    dialogDelete(val) {
      val || this.closeDelete();
    },
  },

  created() {
    this.initialize();
  },

  methods: {
    initialize() {
      this.$api.testcase.getTestcase().then((response) => {
        this.desserts = response.data.data;
      });
    },

    editItem(item) {
      this.editedIndex = this.desserts.indexOf(item);
      this.editedItem = Object.assign({}, item);
      this.dialog = true;
    },
    // 点击删除图标后，会调用此方法
    deleteItem(item) {
      this.editedIndex = this.desserts.indexOf(item);
      this.editedItem = Object.assign({}, item);
      this.dialogDelete = true;
    },

    // 删除确认函数
    deleteItemConfirm() {
      let data = { nodeid: this.editedItem.nodeid };
      this.$api.testcase.deleteTestCase(data);
      this.desserts.splice(this.editedIndex, 1);
      this.closeDelete();
    },

    close() {
      this.dialog = false;
      this.$nextTick(() => {
        this.editedItem = Object.assign({}, this.defaultItem);
        this.editedIndex = -1;
      });
    },

    closeDelete() {
      this.dialogDelete = false;
      this.$nextTick(() => {
        this.editedItem = Object.assign({}, this.defaultItem);
        this.editedIndex = -1;
      });
    },

    // 新增和保存都使用这面这个 save ，通过 editedIndex 进行判断
    // 如果 this.editedIndex > -1 是编辑
    // 否则是新增
    save() {
      if (this.editedIndex > -1) {
        this.$api.testcase.updateTestCase(this.editedItem);
        Object.assign(this.desserts[this.editedIndex], this.editedItem);
      } else {
        //  通过 this.editedItem 获取正在编辑的数据，进行新增
        this.$api.testcase.addTestCase(this.editedItem);
        this.desserts.push(this.editedItem);
      }
      this.close();
    },
    runItem() {
      this.$api.testcase.runTestCase();
    },
  },
};
</script>